:root {
    --azul: #1f4e79;
    --azul-claro: #eaf1f8;
    --gris: #f4f5f7;
    --gris-borde: #d9dce1;
    --texto: #23272f;
    --verde: #1e7e34;
    --rojo: #b02a2a;
    --ambar: #b8860b;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--gris);
    color: var(--texto);
}

header.topbar {
    background: var(--azul);
    color: #fff;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header.topbar a { color: #fff; text-decoration: none; }
header.topbar strong { font-size: 1.1rem; }

nav.principal {
    background: #163a5c;
    display: flex;
    gap: 0;
    flex-wrap: wrap;
}

nav.principal a {
    color: #dbe6f1;
    text-decoration: none;
    padding: 0.6rem 1rem;
    font-size: 0.92rem;
}

nav.principal a:hover, nav.principal a.activo {
    background: var(--azul);
    color: #fff;
}

main {
    max-width: 1100px;
    margin: 1.5rem auto;
    padding: 0 1.5rem;
}

h1 { font-size: 1.4rem; }
h2 { font-size: 1.15rem; margin-top: 2rem; }

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    margin: 1rem 0;
    font-size: 0.92rem;
}

th, td {
    border: 1px solid var(--gris-borde);
    padding: 0.5rem 0.6rem;
    text-align: left;
    vertical-align: top;
}

th { background: var(--azul-claro); }

tr.destacada { background: #fff6e0; }

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    color: #fff;
}

.badge.ok { background: var(--verde); }
.badge.error { background: var(--rojo); }
.badge.pendiente { background: var(--ambar); }
.badge.si { background: var(--verde); }
.badge.no { background: #8a8f98; }

form.formulario {
    background: #fff;
    padding: 1rem 1.25rem;
    border: 1px solid var(--gris-borde);
    border-radius: 6px;
    max-width: 640px;
    margin-bottom: 1.5rem;
}

form.formulario label {
    display: block;
    margin-top: 0.75rem;
    font-weight: 600;
    font-size: 0.88rem;
}

form.formulario input[type=text],
form.formulario input[type=email],
form.formulario input[type=password],
form.formulario input[type=number],
form.formulario input[type=date],
form.formulario select,
form.formulario textarea {
    width: 100%;
    padding: 0.45rem;
    margin-top: 0.25rem;
    border: 1px solid var(--gris-borde);
    border-radius: 4px;
    font-size: 0.92rem;
}

form.filtros {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: flex-end;
    background: #fff;
    padding: 0.9rem 1rem;
    border: 1px solid var(--gris-borde);
    border-radius: 6px;
    margin-bottom: 1rem;
}

form.filtros label {
    font-size: 0.82rem;
    font-weight: 600;
    display: block;
}

form.filtros input, form.filtros select {
    padding: 0.35rem;
    border: 1px solid var(--gris-borde);
    border-radius: 4px;
}

.btn {
    display: inline-block;
    background: var(--azul);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    text-decoration: none;
    margin-top: 1rem;
}

.btn:hover { background: #163a5c; }
.btn.secundario { background: #6c757d; }
.btn.peligro { background: var(--rojo); }
.btn.pequeno { padding: 0.25rem 0.6rem; font-size: 0.8rem; margin-top: 0; }

.alerta {
    padding: 0.75rem 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alerta.ok { background: #d9f2df; color: #1e5128; border: 1px solid #a6dcb4; }
.alerta.error { background: #fbe2e2; color: #7a1f1f; border: 1px solid #f3b6b6; }

.paginacion { margin-top: 1rem; display: flex; gap: 0.5rem; }
.paginacion a, .paginacion span {
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--gris-borde);
    border-radius: 4px;
    text-decoration: none;
    color: var(--texto);
    background: #fff;
}
.paginacion .actual { background: var(--azul); color: #fff; }

.login-caja {
    max-width: 360px;
    margin: 4rem auto;
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--gris-borde);
}

.ayuda { color: #666; font-size: 0.8rem; margin-top: 0.2rem; }